How To Fix FIN_FB_RECON355 - Duplicate entry in table BSAS

FIN_FB_RECON355 - Overview

• Message type: E = Error

• Message class: FIN_FB_RECON - Conversion to S/4HANA: Reconciliation

• Message number: 355

• Message text: Duplicate entry in table BSAS

What causes this issue?

There are line items in table BSEG with duplicate entry in the index
table BSAS.

System Response

The system informs about this inconsistency which must be corrected in
your productive system before starting the data migration.

How to fix this error?

For more information, see
<DS:URLA.HTTPS://LAUNCHPAD.SUPPORT.SAP.COM/#/NOTES/2714344>SAP Note
2714344.</>

Procedure for System Administrators

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message FIN_FB_RECON355 - Duplicate entry in table BSAS ?

  The SAP error message FIN_FB_RECON355, which indicates a "Duplicate entry in table BSAS," typically arises during financial document processing, particularly when dealing with account balances or reconciliation tasks. The BSAS table in SAP is used to store line items for accounting documents, and a duplicate entry suggests that there is an attempt to insert or process a record that already exists in this table.
  
  Cause:
  
  Duplicate Document Posting: The most common cause is that a financial document has been posted more than once, leading to duplicate entries in the BSAS table.
  Data Migration Issues: If data has been migrated from another system or during a system upgrade, it may have resulted in duplicate entries.
  Incorrect Configuration: Configuration settings in the financial module may allow for duplicate entries under certain conditions.
  User Error: Manual entry errors or incorrect batch processing can also lead to duplicates.
  
  
  Solution:
  
  
  Identify Duplicate Entries:
  
  Use transaction codes like SE16 or SE11 to access the